21842569

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{191}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 27454464

約数和(自身を除く): 5611895

約数列:

[1, 7, 17, 31, 119, 191, 217, 527, 961, 1337, 3247, 3689, 5921, 6727, 16337, 22729, 41447, 100657, 114359, 183551, 704599, 1284857, 3120367, 21842569]

約数ペア:

[(1, 21842569), (7, 3120367), (17, 1284857), (31, 704599), (119, 183551), (191, 114359), (217, 100657), (527, 41447), (961, 22729), (1337, 16337), (3247, 6727), (3689, 5921)]